在node.js中获取本地IP地址

I wrote a Node.js module that determines your local IP address by looking at which network interface contains your default gateway.

This is more reliable than picking an interface from os.networkInterfaces() or DNS lookups of the hostname. It is able to ignore VMware virtual interfaces, loopback, and VPN interfaces, and it works on Windows, Linux, Mac OS, and FreeBSD. Under the hood, it executes route.exe or netstat and parses the output.

var localIpV4Address = require("local-ipv4-address");

localIpV4Address().then(function(ipAddress){
    console.log("My IP address is " + ipAddress);
    // My IP address is 10.4.4.137 
});

Install a module called ip like

npm install ip

then use this code.

var ip = require("ip");
console.log( ip.address() );

https://github.com/indutny/node-ip

var ip = require("ip");
console.dir ( ip.address() );